. >>> i'm page hopkins with breaking news out of the los angeles airport. fbi and local law enforcement on the scene after a gunman opened fire at a tsa checkpoint, killing one tsa employee. at least six others were wounded. the suspect, identified as 23-year-old paul ciancia, reportedly began shooting on the ground floor and continued firing as he raced to a tsa screening area. frightened passengers scrambled for cover, even on to the tarmac. the suspect was wounded in a gun fight with officers. he is now in custody. ♪ ♪ hey [ male announcer ] when we built the cadillac ats from the ground up, to be the world's best sports sedan... ♪ ...people noticed. ♪ something like a phenomenon, baby ♪ ♪ you're something like a phenomenon ♪ [ male announcer ] the cadillac ats, 2013 north american car of the year. lease this cadillac ats for around $299 per month with premium care maintenance included. the united states population is going to grow by over 90 ovemillion people,ears and almost all that growth is going to be in cities. what's the healthiest a